CN209706037U - Blast furnace gas combustion electricity generation system - Google Patents
Blast furnace gas combustion electricity generation system Download PDFInfo
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- CN209706037U CN209706037U CN201821861776.2U CN201821861776U CN209706037U CN 209706037 U CN209706037 U CN 209706037U CN 201821861776 U CN201821861776 U CN 201821861776U CN 209706037 U CN209706037 U CN 209706037U
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- blast furnace
- furnace gas
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- inlet pipe
- generation system
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Abstract
The utility model discloses a kind of blast furnace gas combustion electricity generation system, and including steam generation facility and the steam turbine driven by steam generation facility, the steam turbine drives electrical power generators；The steam generation facility includes the burner hearth surrounded by water-cooling wall, is provided with blast furnace gas burner below the burner hearth；The burner hearth rear end is connected with chimney using flue；The water-cooling wall converges to dum boiler, and the jet chimney of dum boiler leads to steam turbine；The blast furnace gas burner includes lighting pipe, and the pipe rear end of lighting is coke-stove gas entrance.Blast furnace gas combustion electricity generation system with above structure is generated electricity using blast furnace gas as fuel, low particular for blast furnace gas combustion value, and the big feature of inert gas content is transformed burner, guarantees that its energy full combustion reaches power generation requirements.
Description
Technical field
The utility model relates to a kind of systems for carrying out combustion power generation using blast furnace gas.
Background technique
Blast furnace gas is the fuel gas of by-product in blast furnace ironmaking production process.Its approximate composition is carbon dioxide 6-
12%, carbon monoxide 28-33%, hydrogen 1-4%, nitrogen 55-60%, hydro carbons 0.2-0.5% and a small amount of sulfur dioxide.Blast furnace
Carbon dioxide in coal gas, N2 are both not involved in burning and generate heat, can not be combustion-supporting, on the contrary, also absorbing a large amount of combustion process
The heat of middle generation causes the theoretical temperature combustion of blast furnace gas relatively low.The ignition point of blast furnace gas is not high, it appears that is not present
The obstacle of kindling, but during Actual combustion, it is influenced by various factors, the temperature of mixed gas must be considerably larger than kindling
Point just can ensure that the stability of burning.The theoretical temperature combustion of blast furnace gas is low, and the amount for participating in the blast furnace gas of burning is very big,
Cause the heating rate of mixed gas very slow, temperature is not high, and combustion stability is bad.
If blast furnace gas, which directly carries out discharge, will cause serious pollution, therefore existing way is all thoroughly to fire it
It is discharged into atmosphere again after burning.However blast furnace gas temperature with higher itself, it can also add containing some combustible gases
With using for example generating electricity etc..However existing thermal power generation system is usually that can not directly use height instead using coal dust as fuel
Producer gas.
Utility model content
In view of this, the present invention provides a kind of blast furnace gas combustion electricity generation systems, are burnt using blast furnace gas
Power generation.
In order to solve the above technical problems, the technical solution of the utility model is using a kind of blast furnace gas combustion power generation system
System, including steam generation facility and the steam turbine driven by steam generation facility, the steam turbine drives electrical power generators；Institute
Stating steam generation facility includes the burner hearth surrounded by water-cooling wall, is provided with blast furnace gas burner below the burner hearth；The furnace
Thorax rear end is connected with chimney using flue；The water-cooling wall converges to dum boiler, and the jet chimney of dum boiler leads to steamer
Machine；The blast furnace gas burner includes lighting pipe, and the pipe rear end of lighting is coke-stove gas entrance；Described light is cased with outside pipe
Blast furnace gas air inlet pipe, described blast furnace gas air inlet pipe housing have air intake duct；It is described light pipe and blast furnace gas air inlet pipe,
Gap is all had between the blast furnace gas air inlet pipe and air intake duct；It is described light pipe, blast furnace gas air inlet pipe, air into
Tracheae front end is opening, and blast furnace gas air inlet pipe front opening is located in air intake duct and lights pipe front opening and prolong
Stretch out air intake duct.
As an improvement pipe, blast furnace gas air inlet pipe, the rear end of air intake duct of lighting is gradually short step by step.It lights
Pipe rear end is connected with coke oven gas pipe, and air intake duct open rearward end is used for air inlet.
As a kind of further improvement, perpendicular inlet tube is provided in blast furnace gas air inlet pipe.Import is effective
In input blast furnace gas, and inlet tube is perpendicular to blast furnace gas air inlet pipe, so that blast furnace gas forms eddy flow in pipeline and makes
It can preferably be mixed with air, guarantee that burning is abundant.
As another further improvement, the flue is provided with economizer, and the dum boiler is connected with supply
Water tank；The extra feed tank is connect with economizer.Utilize the water preheating that economizer is in extra feed tank.
As an improvement being provided with deduster on the flue.Contain dust after blast furnace gas combustion, after needing dedusting
It is discharged again.
As an improvement the deduster is cyclone dust collectors.
The blast furnace gas combustion electricity generation system having the beneficial effect that with above structure of the utility model, utilizes blast furnace
Coal gas generates electricity as fuel, low particular for blast furnace gas combustion value, the big feature of inert gas content to burner into
Row transformation guarantees that its energy full combustion reaches power generation requirements.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of blast furnace gas burner.
Marked in the figure: 1 burner hearth, 2 water-cooling walls, 3 blast furnace gas burners, 4 flues, 5 economizers, 6 dedusters, 7 chimneys, 8
Dum boiler, 9 extra feed tanks, 10 steam turbines, 11 generators, 31 light pipe, 32 blast furnace gas air inlet pipe, 33 air intake ducts,
34 inlet tubes.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to specific implementation
The utility model is described in further detail for mode.
As shown in Figure 1 and Figure 2, the utility model includes steam generation facility and the steamer by steam generation facility driving
Machine 10, the steam turbine 10 drive generator 11 to generate electricity；The steam generation facility includes the burner hearth 1 surrounded by water-cooling wall 2, institute
It states and is provided with blast furnace gas burner 3 below burner hearth 1；1 rear end of burner hearth is connected with chimney 7 using flue 4；The water-cooling wall
2 converge to dum boiler 8, and the jet chimney of dum boiler 8 leads to steam turbine 10；The blast furnace gas burner 3 includes lighting
Pipe 31,31 rear end of pipe of lighting is coke-stove gas entrance；Described light is cased with blast furnace gas air inlet pipe 32, described height outside pipe 31
32 housing of producer gas air inlet pipe has air intake duct 33；It is described to light pipe 31 and blast furnace gas air inlet pipe 32, the blast furnace gas
Gap is all had between air inlet pipe 32 and air intake duct 33；It is described to light pipe 31, blast furnace gas air inlet pipe 32, air intake duct
33 front ends are opening, and 32 front opening of blast furnace gas air inlet pipe is located in air intake duct 33 and lights 31 front end of pipe and open
Mouth extends air intake duct 33.It is gradually short step by step to light pipe 31, blast furnace gas air inlet pipe 32, the rear end of air intake duct 34.It is high
Perpendicular inlet tube 34 is provided in producer gas air inlet pipe 32.
Flue 4 is provided with economizer 5, and the dum boiler 8 is connected with extra feed tank 9；The extra feed tank 9 and economizer
5 connections.Deduster 6 is provided on flue 4.Deduster 6 is cyclone dust collectors.
The utility model is transformed existing thermal power generation system, makes it is suitable for blast furnace gases to be fired as fuel
It burns.It lights and is connected with coke-stove gas in pipe 31, coke-stove gas is easier to burn as burning gas, compared with blast furnace gas.Therefore point
Combustion 31 front end of pipe, for lighting blast furnace gas, avoids blast furnace gas from extinguishing as torch kept burning day and night.Blast furnace coal is passed through in inlet tube 34
Gas forms eddy flow in blast furnace gas air inlet pipe 32, and after mixing well with air in air intake duct 33 in the form of eddy flow
Air intake duct 33 is discharged, then is lighted by lighting pipe 31, forms the recirculated water in flame heating water-cooling wall 2 for generating steam
Driving steam turbine 10 is finally generated electricity using generator 11.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of blast furnace gas combustion electricity generation system, including steam generation facility and the steamer driven by steam generation facility
Machine, the steam turbine drive electrical power generators；It is characterized by: the steam generation facility includes the furnace surrounded by water-cooling wall
Thorax, the burner hearth lower section are provided with blast furnace gas burner；The burner hearth rear end is connected with chimney using flue；The water-cooling wall
Dum boiler is converged to, the jet chimney of dum boiler leads to steam turbine；The blast furnace gas burner includes lighting pipe, described
Lighting pipe rear end is coke-stove gas entrance；Described light is cased with blast furnace gas air inlet pipe outside pipe, outside described blast furnace gas air inlet pipe
It is cased with air intake duct；It is described to light between pipe and blast furnace gas air inlet pipe, the blast furnace gas air inlet pipe and air intake duct
All have gap；It is described light pipe, blast furnace gas air inlet pipe, air intake duct front end are opening, and blast furnace gas air inlet
Pipe front opening is located in air intake duct and lights pipe front opening and extend air intake duct.
2. a kind of blast furnace gas combustion electricity generation system according to claim 1, it is characterised in that: described to light pipe, blast furnace
Gas inlet pipe, the rear end of air intake duct are gradually short step by step.
3. a kind of blast furnace gas combustion electricity generation system according to claim 2, it is characterised in that: in blast furnace gas air inlet pipe
It is provided with perpendicular inlet tube.
4. a kind of blast furnace gas combustion electricity generation system according to claim 1, it is characterised in that: the flue is provided with province
Coal device, the dum boiler are connected with extra feed tank；The extra feed tank is connect with economizer.
5. a kind of blast furnace gas combustion electricity generation system according to claim 1, it is characterised in that: be provided on the flue
Deduster.
6. a kind of blast furnace gas combustion electricity generation system according to claim 5, it is characterised in that: the deduster is whirlwind
Deduster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821861776.2U CN209706037U (en) | 2018-11-12 | 2018-11-12 | Blast furnace gas combustion electricity generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821861776.2U CN209706037U (en) | 2018-11-12 | 2018-11-12 | Blast furnace gas combustion electricity generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209706037U true CN209706037U (en) | 2019-11-29 |
Family
ID=68635052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821861776.2U Active CN209706037U (en) | 2018-11-12 | 2018-11-12 | Blast furnace gas combustion electricity generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209706037U (en) |
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2018
- 2018-11-12 CN CN201821861776.2U patent/CN209706037U/en active Active
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